TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-24-l 4-46. THROTTLE POSITION (TP) SENSOR MAINTENANCE I This task covers: a. Removal b. Installation INITIAL SETUP: TOOIS General mechanic’s tool kit: automotive (Appendix B, Item 1) Test Equipment Multimeter (Appendix B, Item 155) Jumper wire (Appendix B, Item 79) Valve gauge block (Appendix B, Item 45) Manual References TM 9-2320-387-10 TM 9-2320-387-24P EquipmentCondition Air horn removed (para. 3-14). MaintenanceLevel Unit CAUTION The TP sensor is an electrical component and must not be soaked in any liquid cleaner or solvent, or damage may result. 1. Disconnect engine wiring harness connector (3) from TP sensor connector (4). 2. Remove two screws (71, washers (61, and TP sensor (5) from fuel injection pump (1). -1 1. Ensure throttle is closed, and place TP sensor (5) on throttle shaft (2) of fuel injection pump (1). 2. Rotate TP sensor (5) counterclockwise to align screw holes in sensor (5) with holes in injection pump (1). 3. Install TP sensor (5) on injection pump (1) with two washers (6) and screws (7). Do not tighten screws (7). 4. Adjust TP sensor (5). IcAdjustment 1. 2. 3. 4. 5. 6. 4-76 Disconnect engine harness (12) and body harness connectors (11). Install jumper wires between TP sensor connector (4) and body wiring harness connector (11). Rotate ignition switch to RUN position (TM 9-2320-387-10). Using a digital multimeter, measure voltage between terminals A and C of TP sensor connector (4). Tbis voltage should be between 4.5 - 5.8 volts. Multiply by 0.33 to obtain the desired TP sensor voltage, and use this figure to adjust TP sensor. NOTE For example, 5.00 volts x 0.33 = 1.65 volts W.% or 0.02 volts tolerance). Install -646 side of valve gauge block between injection pump throttle lever stopscrew (8) and housing boss (9) on the injection pump (1). Rotate injection pump throttle lever (10) so that stopscrew (8) holds valve gauge block against housing boss (9).